Bottle stopper



P. J. HENTSCHEL.

BOTTLE STOPPER.

APPLscATmM FILED 'Aue 26. 1920.

1,410,250, P2tented Mar. 21, 1922.

In ye ntqr: 13a u I J en .Zisc/zel k? M @Ma, Ma /44 A .PA'UL JT. HENTSGHEJL, 0F BALTIMORE, MARYLAND.

BOTTLE STOPJPER.

To all whom 2'2. may concern:

Be it known that I, PAUL J. HENrsoHEL, a citizen of the United States, and resident of Baltimore, Maryland, have invented certain new and useful Improvements in Bottle Stoppers, of which the following is a specification.

My present invention relates to improvements 1n bottle stoppers and is designed as an improvement upon the t pe of bottle stopper disclosed in Letters atent of the United States, granted to me on the 29th day of October, 1918.

he invention aims to provide a stopper which shall be a unitary article and which may be easily and economically manufactured; and the invention includes the novel features of construction hereinafter described and particularly definedby the appended claims.

My invention isillustrated in the accompanying drawings in which igure 1 is a sectional view of a portion of a bottle illustrating the stopper applied thereinto in the position of pouring out the contents.

Fig. 2 is a plan view of a stopper embodying the invention.

ig. 3 is a transverse section of the same,

Fig. 3* is a similar view, but with the central portion ruptured and lifted up to form the pouring opening.

Fig. 4 1s a plan view with the ruptured portion bent back into the position shown in Figure 1.

Fig. 5 is a plan View and Fig. 6 is a sectional View of a modified form.

Referrin by reference characters to this drawing, t e numeral 1, designates a milk bottle to which my improved stopper 2, is shown as applied, the rupturable portion being bent or deflected outwardly to form av pouring flap or lip to serve as a guide to the liquid issuing through the opening formed by rupturing said central portion.

Heretoforeit has been regarded as necessary to make such stoppers, having a central pouring opening and closing flap, of multiple layers cemented together.

I have found that. the fibrous paper or cardboard customarily used for such stopers is of a laminated nature and that by indenting it from opposite sides in the manner heremafter described, an integral flap may be provided which may be ruptured from the body-of the stopper to provide a pouring opening in such a manner that the flap may be swung back into closing position in case a portion only of the contents of the bottle have been removed.

The rupturable flap 2 is formed by cutting or indenting the stopper 2, from opposite sides by cuts or indents which pene trate approximately half way through the thickness of the disc. The lines of cut or indent are formed so as to enclose a portion of the desired shape to form the flap, and the lines are out of alignment with each other-that is, the indent or cut. (a), in the upper surface of the disc is outside of, or further removed from the center of the disc than is the cut or indent a in the lower face. When, therefore, one edge of the flap forming portion is lifted up and the flap is pulled upwardly, it is separated along the double l1ne as indicated in Fig. 3 leaving the disc with a rebate forming a shoulder a and the flap with a marginal flange a the shoulder forming a seat for the marginal flange when the flap is again closed.

To facilitate the beginning of the rupturing of the flap I Compress the material of the cap on the upper side outside of the circular'line of the cut but adjacent thereto to form a depression a*, this depression being conveniently formed by a suitable projection on the cuttlng die which will compress the material sufiiciently to produce a depression into which the finger nail may be inserted to start the rupturing operation. I find that this starting of the rupturing operation may be further facilitated by slightly raising or loosening up the fibres of the cut edge which may be accomplished by so shaping the die that the severed edge opposite the depression will stick to the die as it is withdrawn thus producing a slightly raised edge portion as shown at a.

I have found that it is desirable to rovide means when the flap is open, which will hold it in the pouring position shown in Fig. 1. This is accomplished by making the upper cut of substantially horseshoe shape and providing a pair of short inclined partial cuts a extending flaringly backward from the hinge lihe. These, when the flap is turned back or opened out, form struts or braces for holding it in pourin position.

nstead of compressing the material to Specification of Letters Patent. Patented May, 21, 1922, Application filed August 26, 1920. Serial No. 406,096.

form the fingernail depression I may use a die having a cutting portion which will out part way through the disc oh a semicircular line a as shown in Fig. 5, the cutter being so shaped that it withdraws the upper layer of the disc leaving a cavity as shown in Fig. 6.

Having thus described my invention, what I claim is- 1. A bottle stopper comprising an integral disc of fibrous material having a rupturable portion, and means for holding said rupturable portion in opened out position.

2. A bottle stopper comprising an integral disc of fibrous material having a rupturable prising wings extending rearwardly of said rupturable portion.

4. The device of claim 1, said means comprising wings, said wings being of less thickness than said rupturab-le portion.-

In testimony whereof, I afiix my signature.

PAUL J. HENeTSC'HEL. 

